2014 Fiscal Year Final Research Report
Estimation formula of coefficient of friction considered distribution of mixed lubrication condition at rolling-sliding contact surface
| Project/Area Number |
24560169
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Design engineering/Machine functional elements/Tribology
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| Research Institution | Waseda University |
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Principal Investigator |
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Keywords | 摩擦係数 / 転がり－すべり接触面 / 混合潤滑 / 境界潤滑部分比率 / 歯車 / かみ合い摩擦 / 動力損失 / 動力伝達効率 |
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| Outline of Final Research Achievements |
For the improvement of reducing power loss and preventing tooth surface failure of power transmission gears, it is necessary to estimate the coefficient of friction under mixed lubrication condition at tooth mesh (rolling-sliding contact surface) with high accuracy.
(1)Coefficient of friction is be able to estimate by using of proposed estimation formula under the condition of oil film thickness distribution. (2)Coefficient of friction at minimum oil film thickness is almost same as coefficient of friction integrated coefficient of friction at contact area in spite of lubrication condition distribution. (3)Coefficient of friction can be estimated by using proposed formula under the 3D contact condition like point contact and misaligned contact. (4) Power loss of transmission gears with tooth profile modification can be estimated by using proposed formula with high accuracy.
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| Free Research Field |
機械要素・トライボロジー
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